Heel end lasting machines



21, 1956 E. QUINN ETAL 2,759,204

HEEL END LASTING MACHINES Filed Nov. 18, 1953 4 Sheets-Sheet 1 Inventors Edward Quinn Paul WJen/[eben Ernest WJaacey,D9cd

Helen M JtaCeq,Exrx B Aug. 21, 1956 E, QUINN ETAL 2,759,204

HEEL END LASTING MACHINES Filed Nov. 18, 1955 4 sheets-sheet 2 59' nventors Edward Quinn Paul WJerz/[eben Ernest Wfibczcegflec'd elen Mil/666?, Exrx.

Aug. 21, 1956 E. QUINN ETAL HEEL END LASTING MACHINES 4 Sheets-Sheet 3 Filed Nov. 18, 1953 Invent0r Edward Quinn Paul W Jen fleben Ernest W Sta fZ'eZerz. fllj taceg ceZDerH Aug. 21, 1956 E. QUINN ETAL I 2,759,204

HEEL END LASTING MACHINES Filed Nov. 18, 1953 4 Sheets-Sheet 4 Inventors Edward Quinn Pbul W Sen/Zeke)": Ernest WStaceyDecc'z" Helen Stacey, Exrx.

United States Patent Oifice Pa ented Aug- 21,, .1956

HEEL END ,LAST'IN G MACHINES Edward Quinn, Saugus, and Paul W. .iSenfle'ben, Beverly, Mass, and Ernest W. Stacey, deceased, late of Beverly, Mass, by Helen M. Stacey, .executrix, Beverly, Mass, assignors to United Shoe .Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application November 18, 1953,:Serial No. 392,832

23 Claims. .(Cl. 1212.3)

This invention relates to machines for shaping shoe uppers over lasts, and is herein illustrated in its application to machines for lasting end portions of shoe uppers.

It is an object of the present invention to provide an improved end lasting machine of the type employing pressure fluid operated means for actuating the lasting wipers. It is a further object of the invention to provide a hydraulic actuating mechanism for :the lasting wipers of a machine for lasting end portions of shoe uppers characterized by the construction and arrangement of the wipers and their carriers whereby :the wipers come to rest at the end of the machine cycle separated from each other to provide clearance for the operation .of .instrumentalities which position and prepare the shoe upper parts for the subsequent operation of the wipers.

With the above objects in NlCW the invention, in one aspect thereof, consists in the combination with the end lasting wipers of a lasting machine of .a ,first piston, means operated by the first piston for imparting advancing movements of translation to the wipers, .means ,for guiding the advancing movements of translation of the wipers in convergent paths, a second piston, and .means operated by the second piston for imparting ztO ,the wipers angular movement relatively to each other to wipe the lasting margin of a shoe upper inwardly ,over an insole on a last bottom. In the illustrated organization the first piston acts on a pair of wipericarriers which mount the wipers respectively for angular movement relatively to the carriers and the second piston operates to impart to the wipers angular movement relatively to the carriers. In another aspect of the invention {the cylinder in which the second piston operates is constructed and arranged to advance with the wiper carriers during the operation of the first piston in order to maintain the angular disposition of the wipers relatively to each other during ,the advancement of the carriers to bring the ipers into wiping position. i

For assisting the operation of the pressure fluid oper- .ated means for advancing the wiper carriers the illustrated machine is provided with a booster which, as herein illustrated, operates during ;the advancement ,of the wiper carriers to urge the ,carriers toward each other in order to assist the movement of the wipers into a mutually articulated position from a position in which the wipers are separated fromeach other.

In order to insure the application of adequate wiping pressure by the wipers to the lasting margin of theupper the present invention, in another aspect thereof, consists in the combination with the wipers and their carriers of a holddown constructed and arranged to hold the wiper and carrier assemblies against movement in one direction heightwise of a shoe in vthe machine.

In order to provide for the movement of the wipers from their rest position in which they areseparatfid from each other into their mutually articulcted position pre- .paratory to the wiping operationthe'suppor t for the free end portion of eachof the wipercarriers .is combined with a cam means tordetermining ;th.e path of movement of the free end portion of the carrier relatively .to the support during the advancementof the carrier.

Inasmuch as the wiper assemblies include in their organization means for driving fastenings for securing the upper in lasted position, the present invention provides means, herein illustrated .as an abutment member, for determining the overwiped position of the wipers. In order to provide for variations in theoverwiped position of the wipers in accordance withshoe sizes, means is provided for adjusting the abutment member lengthwise of a shoe in the machine. Inasmuch as it is .desirable to adjust the overwipedposition of the wipers in accordance wtih variations in Shoe .widths as well as variations in shoe sizes, the present invention contemplates two separate adjusting means .fonthe above memher. In the illustrated organization ,this is achieved by mounting the abutment member on a slide and providing m ans for adjusting the slide lengthwise of a shoe in the machine and means for adjusting the abutment member relatively to :the slide lengthwise of the shoe.

These and other features of the invention will now be described with reference to the accompanying drawings and pointed out in theappended claims.

In the drawings,

Fig. l is a plan view illustrating the heel ,end lasting organization of amachine embodying the features of the present invention, certain parts being broken away to permit the showing of underlying parts;

Fig. 2 is a front elevation of the mechanism illustrated in Fig. 1;

Fig. 3 is a right side elevation;

Pig. 4 is a plan view showing the lasting wiper organization in a position difierent from that shown in Fig. 1, the left wiper assembly being shown in section on the :line IV,IV of Fig. 2;

Fig. 5 is a plan view of the wiper assembly showing the wipers at the limit of their overwiping movements, the left side of the holddown plat being broken away;

Fig. 6 is an enlarged view in section on the line Vl VI of Fig. 4;

"Fig. 7 is an enlarged view partly in section on the line VI I-VII of 'Fig. ,5 illustrating mechanism .for adjusting an abutment member which determines the limit of the overwiping movement," and .Fig. 8 is an enlarged view in {front elevation illustrating the adjusting mechanism shown in Fig. 7.

The invention is illustrated in the drawings as emibodied in a machine provided with a pair of wipers for overwiping the -heel .end portion of a shoe upper mounted on a last supported in the machine and the wipers are provided respectively with drivers which are power operated to drive a plurality of tacks through the overlasted materials and through the margin of an insole on the last bottom to secure the overlasted materials in lasted position. In their retracted position the wipers are spaced apart from each other to an extent somewhat greater than the width of the heel end portion of the shoe in order to provide clearance for the operation of mechanism for upwiping and stretching the back line portion of the upper and for the .operation of mechanism ,for automatically inserting a counter into the heel end portion of an upper supported in the machine independently of its last by the back line wiping and stretching instrumentalities. Inasmuch as the back line wiping and stretching mechanism and the counter inserting means ,do not incorporate features .of the present invention they are not illustrated in the drawings. In the operation of the "illustrated organization the lasting wipers advance in unison from their position in Fig. 1 .toward the heel end porton of .a shoe in the machine and concomitantly move widthwise of the shoe toward each other into their relative position illustrated in Fig. 4 in which the wipers are mutually articulated for relative angular movement from their position in Fig. 4 into their position illustrated in Fig. 5 thereby to wipe the lasting margin of the heel end portion of a shoe upper over an insole on a last bottom. While the lasting wipers remain in their overwiped position shown in Fig. 5, the tack drivers are operated simultaneously to drive a plurality of tacks to secure the overlasted materials to the insole.

In their general organization and in many of their details of construction the wiper and tacker units are substantially similar to the wiper and tacker units illustrated and described in United States Letters Patent No. 1,852,015, granted April 5, 1932, on an application filed 1n the name of Jacob C. Jorgensen, to which patent reference may be had for a detailed description of those features of the wiper and tacker units not fully described herein.

Referring to Fig. 1 the illustrated wiper and tacker units are identified by the numerals and 12. The wiper unit 12 at the right side of the machine has a discoidal extension 14 which registers with a complementally shaped recess in the wiper unit 10 when the wipers are brought into their mutually articulated position shown in Fig. 4 and the center of the discoidal extension 14 defines the axis of the relative angular movement of the wiper units in the overwiping operation. The wiper units are mounted respectively on a pair of carriers 16 and 18. The illustrated wiper carriers are of irregular elongate shape and are arranged to extend from front to back of the illustrated machine. At its rear end the wiper carrier 18 is pivotally mounted on a cylindrical boss 22 (Fig. 3) projecting upwardly from the right end portion of a crosshead 24. The wiper carrier 16 is pivotally mounted on a similar boss (not shown) projecting upwardly from the left end portion of the crosshead. The upper end of the boss 22 and the upper end of the corresponding boss at the left end portion of the crosshead together provide a means for supporting a horizontal cylinder 28 (Fig. 1) having ears 30 projecting laterally from its lower portion and arranged to rest upon the upper ends of the bosses. The ears 30 are secured to the upper ends of the bosses by headed screws 32 and 34. The forward portions of the wiper carriers 16 and 18 are supported by a flat horizontal rail 35 which forms a part of the machine frame. At their forward ends the wiper carriers overlie two plates 38 and 40 mounted respectively on two vertical posts 42 and 44 forming part of the structure of the machine frame, the plates being rigidly secured to the posts by tapered pins 46 and 48 (Fig. 2) extending through hubs 50 and 52 projecting downwardly from the plates. The paths of movement of the forward end portions of the wiper carriers 16 and 18 are determined by angular grooves 54 and 56 (Fig. 1) formed in the plates 38 and 40, respectively. Mounted in the grooves are rolls 58 and 60 carried, respectively, by ears 62 and 64 projecting outwardly from the forward end portions of the wiper carriers, respectively. During the first part of the forward movement of the wiper carriers the rolls 58 and 60 move toward each other in forwardly converging portions of the grooves 54 and 56 to advance the wiper units forwardly and inwardly into their articulated position shown in Fig. 4. During the remainder of the forward movement of the wiper carriers the rolls 58 and 60 traverse parallel forward portions of the grooves 54 and 56 and thus maintain the wiper units in their mutually articulated position as the wipers advance from their position of Fig. 4 to their position in Fig. 5 to perform the overwiping operation. During their overwiping movements the wiper units are held against upward movement by a fixed holddown plate 66. Referring to Fig. 2, the holddown plate 66 has two upwardly extending bosses 68 at its opposite ends, the bosses being bored for mounting on the posts 42 and 44 to which they are secured by pins 69. As shown in Fig. 5, the holddown plate 66 is arcuate in shape and has at its opposite ends inwardly extending ears 71 which engage the forward portions of the wiper assemblies in their advanced positions shown in Fig. 5. As shown in Figs. 1 and 6, the holddown plate 66 is constructed and arranged to engage upper surfaces of brackets and 74 secured to the wiper carriers 16 and 18, respectively. The brackets are secured to the wiper carriers by headed screws one of which is identified in Fig. 6 by the numeral 72. As shown in Fig. l, the two brackets 70 and 74 are each in the form of an arc struck from the axis of angular movement of the wiper units. For mounting the wipers 10 and 12 on the wiper carriers 16 and 18 for arcuate overwiping movements about a common axis of articulation upper and lower ball-bearing assemblies are provided. The upper ball-bearing assembly for the wiper 10 is illustrated in Fig. 4 and comprises an arcuate race plate 76 having formed therein matrices mounting a plurality of balls one of which is identified by the numeral 78. As shown in Fig. 6, the balls 78 travel in an arcuate raceway in the form of a V-groove 79 in the bottom surface of the bracket 70 and engage an arcuate shoulder formed in an outwardly extending flange 80 of the wiper 10 and having a concave contour complemental to the curvature of the balls. The lower ball-bearing assembly for the wiper 10 comprises an arcuate race plate 82 which carries two sets of balls 84 and 86. The balls 34 travel in an arcuate V-groove 88 formed in the upper surface of the wiper carrier 16 and engage the wiper It in an arcuate groove 90 which registers with the groove 88. Similarly, the balls 86 travel in an arcuate V-groove 92 in the wiper carrier 16 and engage the wiper in a V-groove 94 which registers with the groove 92. The mounting of the wiper 12 for arcuate movement relatively to the wiper carrier 18 is similar to the mounting of the wiper 10 and will be understood from the above description of the mounting of the wiper 10.

In the operation of the illustrated machine the wipers and the carriers are advanced bodily from their position in Fig. 1 to their position illustrated in Fig. 4 by the operation of a pressure-fluid-actuated piston 36 illustrated in Fig. 3 and the relative arcuate overwiping movements of the wipers from their position in Fig. 4 to their overwiped position illustrated in Fig. 5 are effected by the operation of a pressure-fluid-actuated piston 98. The piston 96 is mounted in a fixed cylinder 100. As shown in Figs. 2 and 3 the cylinder has outwardly extending supporting feet 162 through which extend headed screws 104, which attach the cylinder to the base portion of a bracket 106 which is secured to a horizontal rail 108 attached to vertical plates 110 forming portions of the machine frame. As shown in Fig. 3 the piston 96 has a piston rod 112 extending forwardly therefrom through a bore in the head of the cylinder and secured at its forward end to the center of the crosshead 24. As shown in Fig. 2 the crosshead is guided for forward and rearward movements by the opposite side walls 114 of the bracket 106 in which are formed channels which receive the oposite end portions of the crosshead. The piston 98 is mounted in the cylinder 28 which, as hereinbefore described, is fixed to the crosshead 24. A piston rod 116 extends forwardly from the piston 93 through the head of the cylinder 28 and has a crosshead 113 fixed to its forward end portion. The opposite ends of the crosshead 118 are connected to the wipers 19 and 12 respectively by connections comprising two links 12%? (Fig. l) pivotally mounted at their rear ends on opposite end portions of the crosshead 118 and at their forward ends on the inner end portions of two arms 122 pro ecting 1nwardly from the upper end portions of elongated hubs 123 (Fig. 3) fulcrumed on headed screws 124 fixed 1n outward extensions 125 (Fig. l) of the wiper carriers 16 and 18. Referring to Fig. 5 a short arm 127 pro ecting inwardly from the lower portion of the hub 123 s pivotally connected at its free end to a link 126 wh1ch 1s pivotally connected at "its forward end toning 128 proj'fitcfing outwardly from the wiper 1'2. A's'iniilariorgan'iza'tion connects the arms 122. "attheleftside of themechine to the wiper 10.

For assisting the movement of the wiper carriers 16 and "18 toward each other during their forward movement from their position illustrated in Fig. '1 to their position in "Fig. 4, the illustrated machine is "provided with a booster herein illustrated as an expansion 'spri-ng I30 '(Fig. 1') mounted *on a rod 1S2 'pivotally mounted at its left 'end on alug 113 on the wiper-carrier 16 and s'lidably mounted in a'bore "in cancer 11% projecting upwardly from the wiper carrier 1%, the spring i130 b'eing confined between the ear 136 and a head 1B8 fixed to the right end portion of the rod "132. It will lac-seen that the expansive force of the spring 130 urges the wiper carriers 16 and 18 toward ea'dh other and thus eases the action of the cam rolls 58 'and '60.

Referring to Fig. 5 the overwip'edpositionofthe wipers 10 and 1 2 is accurately determined inaccordanee with the size and width of the shoe in the machine by "the engagement of the forward edge faces at "the wiper 510 with an abutment member 'herein illustrated as -a Ibracket 1'40 projecting rearwardly and to the=right =from :a member 142 mounted on azsli'de 1421ifonadjustiveimovement in the direction of theflengthaof al shoezin the machine. The :slide .1 44 is mounted in !the forward iportio-n :of zthe groove 54 for similar adjustive {movement The :adjustive movement of the member 1&2 :relatively to rthe slide 14 4 is eifected by turning aithlnribscrew 146, and during such adjustive movement ithe :meniber r1542 is held against angular movement about the f :the screw by a flange 150'( Fig.:Skprojedtingiiromethe slide 144 and positioned intarabbeted'portionio f Ithe xbracket 140. The thumbscrew 146 is mounted in a threaded dongitud'mal bore in'the slide 144andthe-memher @142 is heldiagainst endwise movement'relativelyzto the tthumbscrew between a flange 152 and the head 'of the \thumbscrew. The thumbscrew :is held in its adjusted ,position by a resilient detent 154 (Fig. 7') fixed totanupwardextension1550f the "member 142 :and havingrits :free .end .arr-anged to engage the 'knurled peripheral surface of the "head-.of the thumbscrew. The adjusted ,ipositioniof the member .142 is indicated by the registration of =the bracket .140 --with a scale in the form-"of =a plate {156 LSGCUIEd .to vthe slide 144 and-having shoe =-sizes inscribed :thereon. The slide 144 is adjusted in the groove 54-todetermine .the positionof the bracket 140 vin accordance :with .the widths of the shoe to be operated upon. ;Referring.to Fig. .8 such adjustment of the:-slide is..effected .byztheoperation of a hand lever 158 fulcrumedon a .headed .screw 16.0 fixed in the plate 38. Theihub .162 .of .the .hand lever is extended upwardly and has:an arm 16.4..projectingto the right as seeninFig. -8.from the .upper extremity .of

the-hub. Referring to Fig. v1,.the.free end portion.of the i arm 16 i is bifurcated for engagement with ap'in .166 iprojecting upwardly .from .the slide 144. The adjusted position of the hand .lever 158 is indicated in terms of wardly .from the hand lever and constructed and arranged to enter any one of .aplurality of uniformly spaced notches in theratchet ,plate 168, one of which isidentified-inlFig. 1 by the numera'lf176. Thepawl is disengaged from the ratchet platelby the operation of .a hand .lever -178 projecting outwardly therefrom beneaththehandlever I58. I In the operation of 'the machine in which the illustrated mechanism is incorporated, :a "closed shoe upper such as theupper 180 illustrated in Fig. 1 having "a quarterlining 182 is presented .to the'machine without itslast. .The extremity ofthehee'l por'ti'on ,oftheupper is inserted between the jaws of a 'backlining'wiper assembly (not shown) and *the top margin at the "extremity of the heel portion of the upper is inserted between the jaws of a back line gripper Knot shown). The back line wiper jawsare mounted=on an arm which-operates in the space between the wipens 10 and [2 with the wipers in their separated position shown in *Fig. -l. While the top margin at the heel end of the upperdshld by the-back line gi ipper j'aws the batik line wiper "jaws move upwardly to dip-wipe the back line portion of the upper from the top margin to the lasting margin and then grip the upper to hold it in position "while --a cement coated flanged counter such, for example, as the counter 18% illustrated -'in Fig. l is autom-atically inserted into the upper between the outer povtion iIBOzand the lining 18 2. 'd hereupon dining wipers (not shown) :are operated to upwipe the lining :and bring it into intimate contact .with thednnerfsurfacevofthe counter. A last shaving .-an:inso'le attached :to its bottom :surface is then inserted .into :the' suppoizted upper. The upper is then drawn vordensioned toewardly :by :breast :line grippers :(mot shown) 1 and :pads (:not Shown) are brought into engagement with :the E'hBl end portion-ofithe upper to clamp it against 'I'hfiilflSt in the "position :in which zit :is ;located :by the breast line grippers. 'lihe back line wiperijaws :are then disengaged from ithe supper and moved rupwardly into a :position remote :from Lthe's'hoeito zprovidewlearance for the 1013- eration of the heel end wipers 10 and 12. The piston 96 (Fig. 8) (is :then moved forwardly by pressure ifiuid transmitted Ethrouggh a flexible :tube 186 communicating with a head 1-88 at tthe rear endof rtheaoylinder 102), thereby advancing 'the'wipers from their position in Fig. 1 to their position illustrated gin Fig. 4. At this apoint .-in rthe o pcrating -cycle :the advancement of the ;piston 98 is imtiated by ;.pressure fluid .conducted to the cylinder 28 through arflexible tube 190 whichcommunicates with ,a head v:192 rat .the rear endof .theecylinder .28. While .the piston 98 advances to impart relative .angularimovement to the wipers Y10 .and 1 2 to .cause them .to-overwiperthe opposite side portions .of .the :heel .end of -.the upper, the .piston .96 completes its :advancement .to ,cause .the wipers :to .wipe thelasting margin .at the back line.portion of .the upper inwardly ,over .the .insole on .the :last bottom. .Upon completion:ofwtheoperation.ofthe wipers a plurality .of .tack .drivers .(:not shown) incorporated in the .wiper runits .are .operated concomitantly ito drive a plurality of tacks .through theoverlasted margin of the upper and .the .underiying ,portions of .the counter, -lining,.andinsoleitorsecure the shoe,partslin lasted position. llhereuponpressure ifluid conducted .to the forward por- :tion .of the .cylinder .28 .through a flexible .tube 194 .im- .parts;rearward.movernent to.the piston98 to effect outward .angularmovement .of the wipers, .the ffluid in the rear portion of the cylinder '28 being exhausted .throug'h .thetlibe .190. ,Concomitantlyrearward movement isim- .parted.to,the.piston 96 hy pressure vfluid conducted to the 'forward portion of the cylinder through a flexibletube 11'96.thereby vreturning the wipers to their positionillustrated'in Fig. 1, the 'fiuidin the rear portionof .the cylinder 100 being sexhaustedlhrough the tube 136. The machine then comes to rest and the ,shoe is removed.

'Having thus described ourinvention, what we claim as .new .and desire "to secure by Letters Patent of the Uriited'States is:

.1. In a machine for lasting an end portion of a'shoe upper, apair of end lasting wipers, .a first p'iston, means operated by'thefirsepiston for imparting advancing movements o'fltranslation to the wipers, means for guiding the advancing movements.oftranslation'ofthewipers in convergent paths, a second piston, and means operatedby the secondpistonfor impartin g'tothe wipers angular movement relatively to each 'other.

"2. Ina machine for-lasting an endportion of ashoe the wipers respectively, 'a first =piston, a second piston,

riers =and the second piston, sandimeans operated .by 11116 second piston for advancing the wipers relatively to the carriers.

3. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of carriers mounting the wipers respectively for angular movement relatively to the carriers, a first piston, means operated by the first piston for advancing the carriers, a second piston, and means operated by the second piston for imparting to the wipers angular movement relatively to the carriers.

4. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of carriers for the wipers respectively, a first piston, means operated by the first piston for advancing the carriers, a second piston, a cylinder in which the second piston is mounted, means whereby the first piston imparts a movement of translation to the cylinder, and means operated by the second piston for advancing the wipers relatively to the carriers.

5. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of carriers for the wipers, respectively, a member on which the carriers are mounted, a cylinder mounted on the member for movement with the carriers, a first piston for imparting a movement of translation to the member, a second piston mounted in the cylinder, and means whereby the second piston advances the wipers relatively to the carriers.

6. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of carriers for the wipers, respectively, a member on which the carriers are mounted for movement therewith, a cylinder mounted on the member for movement therewith, a first pressure fluid operated piston for imparting a movement of translation to the member, a second pressure fluid operated piston mounted in the cylinder, and means whereby the second pressure fluid operated piston advances the Wipers relatively to the carriers.

7. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a first piston for imparting movements of translation to the wipers, means for directing the movements of translation of the wipers in paths extending widthwise of a shoe in the machine to and from a position in which they are mutually articulated for angular movement relatively to each other, a second piston, and means operated by the second piston for imparting angular movement to the wipers.

8. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a first piston for imparting movements of translation to the wipers, means for directing a first part of the movements of translation of the wipers in paths extending widthwise of a shoe in the machine thereby to advance the wipers; from a position in which they are separated from each other into a position in which they are mutually articulated for angular movement, and means for directing a second part of the movements of translation of the wipers in a path extending lengthwise only of the shoe thereby to advance the wipers after they have been brought into articulated position in order to wipe the extremity of a shoe upper over an insole on a last bottom, a second piston, and means operated by the second piston for imparting closing movement to the wipers thereby to complete the lasting operation.

9. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a first piston for imparting movements of translation to the wipers, means for directing such movements of the wipers in paths extending widthwise of a shoe in the machine from a position in which they are separated from each other by a distance greater than the width of an end portion of a shoe in the machine into a position in which they are mutually articulated, a second piston, and means operated by the second piston for imparting wiping movements to the wipers.

10. In a machine for lasting an end portion of a shoe upper, end lasting wipers, a slide, connections from the slide to the wipers, means for actuating the slide to advance the wipers from a position in which they are separated from each other into a position in which they are abutted to each other for relative angular movement, a cylinder mounted on the slide, a piston in the cylinder, and connections from the piston to the wipers, respectively, whereby the advancement of the piston in the cylinder imparts relative angular wiping movements to the wipers.

11. In a machine for lasting an end portion of a shoe upper, end lasting wipers, carriers for the wipers, respectively, a first piston, means operated by the first piston for actuating the carriers thereby to advance the wipers from a position in which they are sepaarted from each other into a position in which they are mutually articulated for wiping movement, a second piston, and means operated by the second piston for moving the wipers relatively to the carriers and relatively to each other thereby to impart wiping movements to the wipers.

12. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of carriers for the wipers, respectively, a first piston, means operated by the first piston for actuating the carriers thereby to advance the wipers from a position in which they are separated from each other into a position in which they are mutually articulated for wiping movement, a booster for assisting the first piston, a second piston, and means 0perated by the second piston for imparting wiping movements to the wipers.

13. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of carriers for the wipers, respectively, and pressure fluid operated means for actuating the carriers thereby to advance the wipers from a position in which they are separated from each other into a position in which they are mutually articulated, and for imparting to the wipers angular movement relatively to each other and relatively to the carriers.

14. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of carriers for the wipers, respectively, and pressure fluid operated means for actuating the carriers thereby to advance the wipers from a position in which they are separated from each other into a position in which they are mutually articulated and for imparting to the wipers angular movement relatively to each other and relatively to the carriers, and a booster for assisting the pressure fluid operated means in the actuation of the carriers.

15. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of carriers on which the wipers are respectively mounted for arcuate movement relatively to the carriers, a first piston, means operated by the first piston for advancing each wiper and carrier assembly as a unit, a second piston, and means operated by the second piston for imparting to the wipers arcuate movements relatively to each other and relatively to the carriers.

16. In a machine for lasting an end portion of a shoe upper, a lasting wiper, a carrier on which the wiper is mounted for angular movement relatively to the carrier, a piston mounted for movement in the direction of the length of 'a shoe in the machine, means mounting one part of the carrier for movement with the piston, and means mounting another part of the carrier for movement in a path lying at an acute angle to the longitudinal median line of a shoe in the machine.

17. In a machine for lasting an end portion of a shoe upper, an end lasting wiper, a carrier on which the wiper is mounted for relative angular movement, a piston, operating connections between the piston and one part of the carrier, 'a fixed support for another part of the carrier, and means for determining the path of movement of the carrier relatively to the support.

18. In a machine for lasting an end portion of a shoe upper, an end lasting wiper, a carrier on which the wiper is mounted for relative angular movement, a piston, operating connections between the piston and one part of the carrier, a fixed support for another part of the carrier, means for determining the path of movement of the carrier relatively to the support, and a holddown constructed and arranged to hold the assembly comprising the wiper and the carrier against movement in one direction heightwise of a shoe in the machine.

19. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of carriers on which the wipers are respectively mounted for movement relatively to the carriers, an actuator on which the carriers are pivotally mounted, two members for guiding the carriers respectively, a holddown plate fixed relatively to the guiding members and constructed and arranged to hold the wiper and carrier assemblies against movement in one direction heightwise of a shoe in the machine, and means for moving the wipers relatively to the carriers thereby to cause the wiper-s to perform an overwiping operation on a shoe in the machine.

20. In a machine for lasting an end portion of a shoe upper, an end lasting wiper, a carrier on which the wiper is mounted for angular movement relatively to the carrier, a member mounting one portion of the carrier for movement in a rectilinear path extending toward and from one end of a shoe in the machine, a fixed member constructed and arranged to mount another portion of the carrier, means for determining the path of movement of the carrier relatively to the fixed member, and means for imparting to the wiper angular movement relatively to the carrier.

21. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a first piston, means operated by the first piston for advancing the wipers bodily, a second piston, means operated by the second piston for imparting angular movement to the wipers, an

10 abutment member for determining the extent of the angular movement of the wipers, and means for adjusting the abutment member lengthwise of a shoe in the machine.

22. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of wiper carriers, a first piston, means operated by the first piston for advancing the wiper carriers, a second piston, means operated by the second piston for moving the wipers relatively to the carriers, and an abutment member constructed and arranged to limit the movement of the wipers relatively to the carriers.

23. In a machine for lasting an end portion of a shoe upper, a pair of end lasting wipers, a pair of carriers for the wipers, respectively, pressure fluid operated means for imparting to the wiper-s angular movement relatively to each other and relatively to the carriers, an abutment member for limiting the extent of movement of the wipers relatively to the carriers, a slide on which the abutment member is mounted, means for adjusting the slide lengthwise of a shoe in the machine, and means for adjusting the abutment member lengthwise of the shoe relatively to the slide.

References Cited in the file of this patent UNITED STATES PATENTS 1,949,539 Gouldbourn et a1. Mar. 6, 1934 2,221,864 Cummings Nov. 19, 1940 2,354,685 Iorgensen Aug. 1, 1944 2,573,886 Zaoral et a1. Nov. 6, 1951 FOREIGN PATENTS 204,507 Great Britain Oct. 4, 1923 440,329 Great Britain Dec. 30, 1935 

